Multi-Signature Wallet (Solidity)

How to create a simple multisig smart contract in Solidity. Step by step tutorial.

What is Vyper?

Introduction to Ptyhon based alternative to Solidity EVM smartcontracts programming language. What is Vyper? Why Vyper is Created? How does Vyper Work? Steps to Writing Contract in Vyper. Vyper vs Solidity comparison table. Advantages and limitations of Vyper


Total Market Cap nad Trading Volume of BRC-20 Tokens. Top BRC-20 tokens list. Inscribe tool.

Building an arbitrage bot: Automated Market Makers and Uniswap V2 (article 1/n)

General introduction to AMMs, deep explanation what is an AMM. Description of Uniswap V2 AMM protocol. Then solidity smartcontracts and Ptyhon examples for developing own solution.


Chainlist is a list of EVM compatible networks with fast MetaMask configuration tool. Simply search for network and click "Add to Metamask" Additionally choose fastest RPC server to communicate with network. A lot of networks are available, i.e. BNB Smart Chain Mainnet, Arbitrum One, ChainID, Polygon Mainnet, Avalanche C-Chain, Fusion Mainnet, Klaytn Mainnet Cypress, Fantom Opera and many more.

Part I: WTF is Account Abstraction

Three part (Part I: WTF is Account Abstraction, Part 2: WTF is Account Abstraction, Part 3: WTF is Account Abstraction) saga about needs and motivation to change account management in Ethereum from EOA to smart contracts. Author believe that Account Abstraction is a genuine breakthrough for crypto.

Alchemix reports return of all stolen funds from Curve pools

Curve is a major DEX and this hack can destroy it. Luckily hacker return all money. This was about technology bug in Vyper. Vyper is a Python like programming language alternative to Solidity for writing EVM smart contracts. Bytecode for Vyper contracts is created during compilation and can be run on the Ethereum Virtual Machine (EVM).


Independent crypto news portal, part of DefiLlama group. Sections: Fintech/VC/Deals, Llama U, Market, People & Culture, Regulation, Snapshot, Web3. From site: "DL News is an independent news organisation that provides in-depth reporting on the largely misunderstood world of cryptocurrency and decentralised finance. From original stories to investigations, our journalism is accurate, honest and responsible."

Seedless Self-Custody: On MPC and Smart Contract Wallets

Very comprehensive article comparing two modern solution for crypto wallets: smart contract wallets (including multi-signature wallets) and multi-party computation (MPC) protocols. Author did describe advantages and disadvantages of both solutions along with cooperation scenarios.


JSON NFT API Service, Trading Aggregator Service. Pricing from free for non-commercial, 99$, 299$ and custom. From site: "NFTGo NFT API helps the communities, institutions and DAOs retrieve, manage and process real-time on-chain data with richest granularity."

The Top 15 Crypto Influencers You Should Be Following on Social Media

Short descriptions and links to profile of Vitalik Buterin, Michael Saylor, CZ, BitBoy Crypto and more crypto superstars.

Coincodex ICO List

Top ICOs & Upcoming ICO Calendar (Initial Coin Offering).

ICOholder ICO List

The list of ongoing, upcoming, past ICOs with rating note. Look for submit form to get pre-ICO or ICO published on the ICOholder. Listing on ICOholder is free.

Altcoins Talks Forum

Well managed friendly crypto forum with clear rules. Topics: Altcoins & Cryptocurrencies discussions, Cryptocurrency Trading, News related to Cryptos, Pump & Dump, For Beginners, Further Education, Cryptocurrency Ecosystem - Bitocin, Ethereum, XRP, Avalanche, Stellar and more separate forums. Also NFTs & Collectibles Forum, Marketplace, many local forums and more.

PooCoin Charts

Scan Your Web3 wallet on Polygon, BSC, Kuchain blockchains for any token You have in it and view it's price chart. Warning - You can discover some unknown tokens (shitcoins) in Your wallet with great $ value, for 99,9% it is a scam (MNEP, BGGBox and others) with inflated price.

The Cryptocurrency Forums

Crypto discussion forum from Nov 7, 2017. Main themes are: Crypto General Topics, Beginners, Promotional/Classifeds, Bitcoin, Ethereum, Altcoins. Selected detail topics: General Discussion, Crypto Wallets, Exchanges, Crypto Investing/Trading, Scams, Getting Started, Beginner Q&A, Bitcoin News, Bitcoin Investing, Ethereum General News, Altcoin News, Litecoin (LTC), Bitcoin Cash (BCH), Ripple (XRP). Stats (07/2023): Threads 2,820 Messages 6,682 Members 2,779 From site:"This site is committed to educating people about cryptocurrencies, what they are, how they work, what they do, and where developments are going."

What is an MPC Wallet?

This article is answering on key MPC wallets questions like: What is MPC and how does it work? Why MPC is a better user experience than a “seed phrase” wallet? How does MPC (Multi-Party Computation) work? Who uses MPC? Is MPC new technology? Does MPC support many blockchains?


Enterprise level MPC Wallet As A Service. Solutions for banks, exchanges, hedge funds and other companies.

XEN Minting&Staking Page

XEN is an algorythmic ERC-20 experimental token built on the Ethereum blockchain and on 10 ETH compatible sidechains. Everybody can mint XEN alomost for free (besides TX fee), but XEN has no fixed supply and inflation is very high. Thanks to special algorythm, the supply of XEN will lower in future and inflation will stop. Mint process take time and You must take care to renew process or lost coins. The XEN founder is Jack Levin, who was part of the early Google team.

NFT Guide for Creators – How to Mint and More

Introductory Guide to NFT, topics covered: Key Concepts Behind NFTs, What Gives an NFT Value?, Who Would Pay for an NFT?, Creating an NFT, Legal Ramifications of Creating NFTs (US Law).

Charles Hoskinson embarks on ocean expedition to search for alien technology

Charles Hoskinson is Cardano blockchain founder. Article about preparation of expedition to take over object that fell from space in 2014 as an interstellar meteor for deep ocean. Object is originating from outside our solar system and can be an alien technology product.

5 Beginner Crypto Trading Strategies to Master

5 basic strategies for crypto trading. Strategy #1: Moving Averages, Strategy #2: Golden & Death Crossesz, Strategy #3: Market Structure,Strategy #4: Dollar-Cost Average , Strategy #5: Relative Strength Index - Divergences.This articve has been written for educational purposes. It should not be construed as advice in any shape or form. Please do your own research.

Delistings, Lawsuits and Unregistered Securities: How SEC's Actions Are Impacting Crypto

From site: "Most recently, the SEC targetted two big CEXs and declared 16 new cryptocurrencies as securities, including the likes of Solana (SOL), Cardano (ADA), Polygon (MATIC), Cosmos (ATOM), Internet Computer (ICP), and more." The distinction between cryptocurrencies and securities remains unclear and this settlement will take years.

Crypto News Flash

NEWS,CRYPTO WALLETS REVIEWS, TOP CRYPTOCURRENCIES BY MARKET CAPITALIZATION From site: "Crypto News Flash (CNF) was founded in 2019 and has quickly grown into one of the leading news sources for the crypto und blockchain industry with readers from around the globe. The CNF team strives to accelerate the growth of the crypto community by delivering insightful and the latest up-to-date news on the marke."


Decentralized social media platform. Write messages as NFT on Polygon or Ethereum and share with others. They are in blockchain and will last forever. Transaction fee included.

Liquidity Pools - How To Lock LP tokens, Provide Liquidity (Ultimate Tutorial)

Tutorial video about How to create own Liquidity Pool and what is LP (Locked Pool) and why new coin should have it.

What Are Smart Contract Wallets?

Decentralized non-custodial wallet technology with trusted third party - owner of wallet smartcontract. In custodial wallets third party are arranged too, but not everything is happen on blockchain. Smartcontracts wallet are on blockchain and are supposed for users which wants (must) to have third party for backup and guarantees - institutions, organizations and users not involved in IT side of crypto.


Launchpad for new ERC-20 tokens on Ethereum Mainnet, Polygon, Arbitrum, BSC, Avalanche and more sidenets. $512.2M Total Liquidity Raised, 17640 Total Projects, 2M Total Participants, $284.9M Total Values Locked. New token creation form, dutch auctions, subscription lists, private sale, airdrop and more features. From site: "PinkSale is a decentralized launchpad that allows users to launch their own token and create their own initial token sale. No coding knowledge is required, just simply navigate through to our terminal and design your own token in just a few clicks. PinkSale offers multiple other features to help you with the overall token launch, such as: Automatic listing of your token on PancakeSwap, UniSwap, ShibaSwap, SushiSwap, KuSwap, QuickSwap and MM Finance, all whilst giving you the ability to lock your LP and and adding an optional vesting period for your tokens."

Kyber Network

Kyber Network is a decentralized, blockchain-based protocol that aggregates liquidity and enables the exchange of tokens without an intermediary - decentralized exchange (DEX) aggregator. User can create also its own liquidity pool. Kyber Network is governed by the community through KyberDAO, a Decentralized Autonomous Organization. KNC holders stake KNC tokens to vote on governance proposals. From site: "KyberSwap is a decentralized exchange (DEX) aggregator. We provide our traders with the best token prices by analyzing rates across thousands of exchanges instantly! KyberSwap is also an automated market maker (AMM) with industry-leading liquidity protocols and concentrated liquidity. Liquidity providers can add liquidity to our pools & earn fees!"


Mobile App cryptocurrency and NFT wallet utilising Multi-Party Computation (MPC) technology for everybody. From site: "MPC wallets like ZenGo replace the traditional private key with two independently created mathematical â??secret shares.â?? One share is stored on your mobile device and the other on the ZenGo server. With no single point of failure, even if something happens to one of the shares, no one can access your crypto but you. " "The only self-custodial wallet with no seed phrase vulnerability. A true multi-chain wallet, from Bitcoin, Ethereum, Tezos and 70+ cryptoassets. Buy, sell, and trade in a few simple taps. Store, view, and discover NFTs, DeFi, and thousands of Dapps. MPC = No seed phrase vulnerability. Bulletproof security against hacks and scams. Goodbye account takeovers and phishing scams: ZenGoâ??s next-gen security leverages MPC cryptography instead of seed phrases or private keys MPC has been used by institutions for years to secure billions of dollars. ZenGo is the first self-custodial wallet to bring MPC to you."

What Are Multi-Party Computation (MPC) Wallets?

Multi-Party Computation (MPC) Wallets allows multiple parties to perform computations on their data without revealing it to each other. MPC wallets are using advanced cryptographic techniques and distributed computing to offer increased flexibility by enabling dynamic policies and workflows for managing digital assets MPC. This makes it ideal wallet solution for institutional clients but not only.

The Ichimoku Cloud indicator

Introduction to The Ichimoku Cloud (also known by its Japanese name; Ichimoku Kinko Hyo) a technical analysis technique for crypto trading.

Tap Tools

Cardano Native Asset Market charts: Top25, Trending, Top Gainers, Top Losers of smartcontract tokens and NFTs. Global Cardano Market info: 24H Market Volume , Hot/Whale ADA Wallets list and more.


PREMINT allow list management tool based on: Minimum Wallet Balance, Password, Twitter Auth, NFT Ownership, Discord Membership. From site: "PREMINT is widely used by the world's top NFT artists, communities, brands, and celebrities to build allowlists for top NFT projects. Premint has been used by some of the top artists and collections in the NFT ecosystem, including XCOPY, Coldie, DeekayMotion, Cool Cats, Known Origin, Async Art, Shaq, and over 25,000 more. While creators are welcome to name their PREMINT projects whatever they like, we choose to use the term "allow list" or "access list" vs "whitelist." "Whitelist" could be considered exclusionary language, and the spirit of web3 is about inclusion."

Next Block Expo 2023

Meet founders, investors & web3 community - 24-25 May, Warsaw. Tracks: DeFi, Blockchain Gaming, Metaverse & NFT, Scaling & Infrastructure, Web3 Discovery, Fundraising & Investing. "Meet founders and CEOs of fast-growing startups, VC's, angel investors, advisors & blockchain experts that can elevate your business to the next level."

Liquidity Pools Explained - How to control the price of your token

Good video about Liquidity Pools - how they work, how prices are calculated and all risk associated. Rug pull explained.


The largest Digital Art & Collectible marketplace on Tezos blockchain. Buy and sell Tezos NFTs or make English or a Dutch Auction for it. First, create profile, collection and mint tokens. Social profile and website verification. Tezos means low transaction cost and very good decentralization and security. True Ethereum alternative with own smartcontracts.

$POPE Homepage

PopeCoin is an ERC-20 standard memecoin on Ethereum. The contract has 0% tax and 100% of LP is locked. No team tokens, 50% burned. Super strong community. Had a public presale on pinksale.finance and just launched on Uniswap on 04.05.2023. Contract Address, Roadmap, Tokenomics can be found on the homepage.

OpenSea: The Ultimate Guide to Its Tools, Features, and Controversies

Article about OpenSea - one of the first and now well-known peer-to-peer NFT marketplace. What is OpenSea?, OpenSea vs. Blur, OpenSeaâ??s royalty woes, OpenSea tools and features, OpenSea Pro, OpenSeaâ??s future

DAO Times

Latest articles about Decentralised Organisations (DAO). Newsletter subscription. Education guides and industry interviews. From site: "DAO Times is an independent publication that researches, analyzes, and reports major news and developments in the DAO sector."

NFTSCAN The NFT Explorer of Ethereum and more

Browse and see NFTs on addresses of wallets, collections and tokens at these blockchains: Ethereum, BNB Chain, Polygon, Solana, Arbitrum, Optimism, Avalanche, Moonbeam, PlatON, Cronos, Fantom, Gnosis, Aptos. In-depth chart analysis of NFT Sales, Marketplaces, popular collections. New minting on-line tracker and many other tools.

What Is Curve's Decentralized Stablecoin - CrvUSD

Introduction to Curve and CrvUSD - stablecoin based on Lending-Liquidating AMM Algorithm (LLAMMA).

PEPE Coin Homepage

This coin made meme great again. 500 millions market cap in 14 days and 1600% price growth. From site: "the most memeable memecoin in existence. The dogs have had their day, itâ??s time for Pepe to take reign."

Token Pepe (PEPE) on Etherscan

True PEPE token smartcontract address for Ethereum.

Wojak Coin

43 millions $ market cap memecoin. From site "Welcome to the dawn of the Wojak Token, an innovative and exciting digital asset inspired by the famous Wojak meme." Contract address: 0x5026F006B8 5729a8b14553FAE 6af249aD16c9aaB

What is PEPE, crypto's latest hot memecoin?

PEPE memecoin introduction story.


TESTNET. A CONSENSYS FORMATION EVM equivalent - L2 blockchain. A developer-ready zk rollup for scaling Ethereum dapps. "Low fees - Unlock user engagement EVM equivalent - Fully compatible with existing tools, infrastructure, IDEs and wallets Secured by Ethereum - Backed by the security of Ethereum and a decentralized community of more than 500k validators Next gen scalability - Award-winning prover generates zk proofs with industry-leading speed"

What are Bitcoin Stamps and How do they Work?

New way to write NFT directly on Bitcoinâ??s unspent transaction outputs (UTXOs). The protocol has more capabilities for on-chain Bitcoin protocols than Ordinals.

5 Upcoming L2s to Watch

Try the 5 new L2 network and build potential for airdrop opportunities. Introduction to testnets of Base, Fuel, Linea, Scroll, Taiko.

Top NFT Collectors

How do you know if a NFT is valuable? Article from collector perspective. On This Post: Why NFT Collectors Buy NFTs? How we Rank these NFT Collectors How to get started as an NFT collector? Top NFT Collectors in 2022 How do you know if a NFT is valuable? Looking for NFT Collectors for your Project? Will anyone buy my NFT? What is the most expensive NFT ever sold? NFT Collectible Art Whale Buyers